Description: The Security System detected an attempted downgrade attack for server cifs/servername. The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request. (0xc000005e)". I have searched KB and the groups, but all suggestions either don't apply (wrong Server os) or

Oct 25, 2007 · DNS server list : Sent update to server : IP Address(es) : Event ID: 40961 The Security System could not establish a secured connection with the server . No authentication protocol was available. Event ID: 40960 The Security System detected an attempted downgrade attack for server . From the server, ping the host with the DF bit set and Category: SPNEGO Computer: DOA70583 Security system detected an attempted downgrade attack for server cifs/. currently no logon servers available to service the logon request. Jun 12, 2008 · EventID 40960 - The Security System detected an attempted downgrade attack for server cifs/servernam.domain.xxx (Kerberos 0xc000005e). EventID 40961 - The Security System could not establish a secured connection with the server xxx. Now i restart the notebook. And i can logon to the domain with no problem, and no delay. A downgrade attack or version rollback attack is a form of cryptographic attack on a computer system or communications protocol that makes it abandon a high-quality mode of operation (e.g. an encrypted connection) in favor of an older, lower-quality mode of operation (e.g. cleartext) that is typically provided for backward compatibility with older systems. The Security System detected an attempted downgrade attack for server cifs/SERVER. The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request.

Jun 12, 2008 · EventID 40960 - The Security System detected an attempted downgrade attack for server cifs/servernam.domain.xxx (Kerberos 0xc000005e). EventID 40961 - The Security System could not establish a secured connection with the server xxx. Now i restart the notebook. And i can logon to the domain with no problem, and no delay.

After you know which server sent the authentication validation, you should investigate the server by checking its events such as 4624 to better understand the authentication process. Remediation Complex and long passwords provide the necessary first level of security against brute-force attacks. Apr 25, 2002 · Description The Security System detected an attempted downgrade attack for server . The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request. (0xc000005e)". Description: The Security System detected an attempted downgrade attack for server cifs/servername. The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request. (0xc000005e)". I have searched KB and the groups, but all suggestions either don't apply (wrong Server os) or

event id 40961 " the sercurity system could not establish a secured connection with the server ldap/. no authentication protocol was available" event id 40960 " the security system detected an attempted downgrade attack for server ldap/.

> The Security System detected an attempted downgrade attack for server > cifs/namedserver. The failure code from authentication protocol Kerberos > was "There are currently no logon servers available to service the logon > request. (0xc000005e)". > then: > The Security System could not establish a secured connection with the server The Security System detected an attempted downgrade attack for server cifs/domaincontroller.domain.local. The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request. (0xc000005e)". Event Type: Warning Event Source: LSASRV Event Category: SPNEGO (Negotiator) Event ID: 40961 The Security System detected an attempted downgrade attack for server cifs/servername. The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request. (0xc000005e)". Event 40960 (SPNEGO) negotiator